Easton's Bible Dictionary by Matthew George Easton M.A., D.D. (1823-1894), published three years after Easton's death in 1897 by Thomas Nelson. Despite its name, many of the entries in Easton's are encyclopedic in nature, though there are short, dictionary-like definitions too.
Easton's Bible Dictionary contains an extensive set of entries used in the Bible, from a 19th century Christian viewpoint. It contains nearly 4,000 entries!
Bonus to the "Understanding The 3 Levels of Salvation: Spirit, Soul & Body"